Rubber compound for hydraulic hose

No.

Test item

Performance indexes

1

                 Tensile strength MPa 

8

2

Elongation at break% 

250

3

Shore hardness (A)

76±5

4

Scorch 121℃ min 

20

5

Viscosity ML121℃1+4

55~75

6

Aging: 90℃×24h Medium: Air (on basis of elongation)

0.75

7

Ozone 40℃×720h   500pphm  No cracking at 20% elongation

No cracking

8

100℃×72h 3# standard △V%

0~100

9

H withdrawal (Φ0.3㎜)  N 

100

10

Low-temperature brittleness of rubber sheet (℃) 

-30℃

11

Low-temperature of hose

-40℃

12

Specific gravity g/cm3

1.43±0.03

13

Cure condition: 151℃×60 min, or 163℃×20 min


Return